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 ###Instrução: Quantas regiões possuem 0,5% de painéis solares?
 ###Tabelas: CREATE TABLE former_current_professional_teams (former_current_professional_teams_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Sport VARCHAR, League VARCHAR, Played VARCHAR, Class VARCHAR, Championships VARCHAR) CREATE TABLE 2009_ladder_and_finals (2009_ladder_and_finals_id AUTO_INCREMENT PRIMARY KEY, Benalla DFL VARCHAR, Wins INT, Losses INT, Draws INT, Byes INT, Against INT) CREATE TABLE by_access_to_electricity (by_access_to_electricity_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Public network VARCHAR, Own/community generator VARCHAR, Solar panel VARCHAR, Other source VARCHAR, None VARCHAR) CREATE TABLE canadian_national_championships_and_canadian_open_together (canadian_national_championships_and_canadian_open_together_id AUTO_INCREMENT PRIMARY KEY, Year INT, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE regional_vote__ (regional_vote___id AUTO_INCREMENT PRIMARY KEY, Date(s) conducted VARCHAR, Cons VARCHAR, Plaid Cymru VARCHAR, Lib Dem VARCHAR, UKIP VARCHAR, Green VARCHAR, Others VARCHAR, Lead VARCHAR)  
SELECT COUNT Public network FROM by_access_to_electricity WHERE Solar panel = 0.5%